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Measurement and Instrumentation

Measurement and Instrumentation
The resistance in the circuit of the moving coil of a dynamometer wattmeter should be

High
None of the listed here
Almost zero
Low

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Measurement and Instrumentation
The core flux in the CT of above question no.6, under the given operating conditions is

 450 mWb.
 225 mWb.
 1000 mWb.
 0.

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Measurement and Instrumentation
In a CRO which of following is not a part of electron gun?

 Grid
 Accelerating anode
  X-Y plates
 Cathode

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Measurement and Instrumentation
The best type of meter moment is ______ moment.

Iron- vane
D'Arsonval
None of the listed here
Dynamometer

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Measurement and Instrumentation
A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be

 100 W.
 25 W.
 50 W.
  0 W.

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Measurement and Instrumentation
Some wire- wound resistors have bifilar winding. This type of winding is used to

Double the power rating of the resistor
Reduce the tolerance
Increase the thermal stability
Reduce the inductance of winding

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MORE MCQ ON Measurement and Instrumentation

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